Home / 7,929.85-10,939.71-4,741.39

Finding the Fourth Proportional to 7,929.85, 10,939.71 and 4,741.39

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Solution

The fourth proportional to 7,929.85, 10,939.71 and 4,741.39 is: 6,541.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,929.85 : 10,939.71 = 4,741.39 : x
  2. Step 2: Convert to fraction form
    7,929.85/10,939.71 = 4,741.39/x
  3. Step 3: Cross multiply
    7,929.85x = 10,939.71 × 4,741.39
  4. Step 4: Simplify right side
    7,929.85x = 51,869,374.85
  5. Step 5: Solve for x
    x = 51,869,374.85/7,929.85
  6. Step 6: Final answer
    x = 6,541.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.